WordPress says "Update package not available" and stops. That one line has four different causes, from a lapsed licence to a plugin that was never licensed to your site. Here is how to tell which, and how to check whether what is installed is genuine.
A complete WordPress security hardening checklist covering wp-config.php lockdown, file permissions, security headers, XML-RPC disabling, database security, CSP implementation, and ongoing monitoring practices for 2026.
Wordfence, Sucuri, and Solid Security take fundamentally different approaches to WordPress security. This comparison covers firewalls, malware scanning, brute force protection, 2FA, pricing, and performance impact to help you pick the right plugin for your site.